1992 |
90%
|
1995 |
84%
|
1993 |
84%
|
1991 |
79%
|
1990 |
79%
|
1995 |
84%
|
1990 |
67%
|
1991 |
67%
|
1992 |
67%
|
1985 |
77%
|
1989 |
63%
|
1995 |
66%
|
1994 |
66%
|
1994 |
79%
|
1990 |
70%
|
1980 |
75%
|
1981 |
75%
|
1990 |
73%
|
1991 |
73%
|
1979 |
69%
|
1979 |
62%
|
1990 |
54%
|
1995 |
57%
|
1991 |
61%
|
1990 |
61%
|